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发明名称
Adjustable columns
摘要
An adjustable column for partitions in which first and second tubular members are arranged to be forced apart against abutments to furnish a column support. An external shroud is provided to conceal the internal components.
申请公布号
US3917208(A)
申请公布日期
1975.11.04
申请号
US19740503309
申请日期
1974.09.05
申请人
MAGERS, JOHN
发明人
MAGERS, JOHN
分类号
E04B2/82;(IPC1-7):E04G25/00;A47H1/08
主分类号
E04B2/82
代理机构
代理人
主权项
地址
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